[FIX] stock_account: search view for current valuation

Before this commit, it was impossible to search anything in the list view
when doing a Inventory Valuation > Current Inventory

After this commit, a few meaningful fields are searchable

OPW 1943676

closes odoo#31356

addons/stock_account/views/stock_account_views.xml

@@ -91,6 +91,10 @@
             <field name="priority" eval="17"/>
             <field name="arch" type="xml">
                 <search string="Inventory Valuation">
+                    <field name="name" string="Product"/>
+                    <field name="categ_id" />
+                    <field name="product_tmpl_id" />
+                    <field name="attribute_value_ids" />
                     <filter string="Category" name="categ_id" context="{'group_by':'categ_id'}"/>
                     <separator/>
                     <filter string="Archived" name="inactive" domain="[('active','=',False)]"/>